Early Knee Replacement Failures

Posted on 10/03/2017Back

The Journal of Knee Surgery (June 2017) reports an unusually high rate of failure in the DePuy Attune Knee Replacement System. These failures are occurring one month to two years after initial implantation, and patients are reporting loosening as well as pain on initiation of weight bearing. Of the reports considered within the article, only a small minority demonstrated evidence of radiolucencies.  Nonetheless, the reports observe that “the tibial component had debonded and was easily separated from the cement mantle. Upon removal of the tibial baseplate, the inferior surface of the tibial baseplate was clear of cement.”  In juxtaposition, all of the cement was “strongly adherent” to both the tibial bone and femoral components. Such loosening at the implant-cement interface is an unusual mechanism of injury, especially for cemented total knee arthroplasties, and is causing severe pain and oftentimes resulting in knee revision surgeries. (J Knee Surg. 2017:30, 435-439)

The DePuy Attune Knee Replacement System came on the market in 2013. While the device was intended to last for 15-20 years, many patients have reported failure within one month to two years after the implantation. The U.S. Food and Drug Administration (FDA) has yet to recall this device, but the number of reported failures is quickly rising.

Issues Associated With the Loosening

Symptoms associated with the loosening of the DePuy Attune Knee Replacement System may include:

  • Instability
  • Pain and swelling
  • Failure to bond
  • Fracture
  • Persistent warmth/heat in the knee
  • Revision Surgery

Read more symptoms of the failed DePuy Attune Knee.

Awareness of Attune

Another problem that arises from the Attune knee is the lack of awareness of this device failure. In the case study reported in The Journal of Knee Surgery, only 13{73438c93b9a6e6bfc5cd31bf6578637c675720219417f2f1a65e7c8e6c24cfa4} of the knees that had the Attune® implant showed evidence of radiolucencies indicating the loosening of the device. Because of the radiographic failure to accurately assess the loosening, both doctors and patients remain unaware of the loosening of the Attune knee. GoldenbergLaw hopes to inform individuals of this so they can take the necessary actions.

Next Step

GoldenbergLaw is dedicated to pursuing justice for those injured through faulty knee replacement systems. If you or a loved one had a total knee replacement surgery since 2013 and are experiencing tibial loosening, please give us a call at 612-346-5026 for a free and informative consultation.

Category Defective Medical Devices